Levolor Louver Drape Vertical Blind Control Sprocket
The Levolor Vertical Blind Control Sprocket is for vertical blinds using a #6 chain, to control movement of the blinds. Moreover, the control sprockets hole fits over a blind rod with 3 evenly spaced notches.
The #6 chain fits this sprocket.
Also known as the Louver Drape or Levolor DesignLine and Levolor Louverdrape Zirlon.